Use the fundamental identities and appropriate algebraic operations to simplify the expression.
A. -sec x
B. 1
C. sec x
D. csc x
Answer: C
Mathematics
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Evaluate the expression.3 ? 
A. - 
B. - 
C. 33
D. - 
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. -14 B. -5 C. 0 D. 1
Mathematics
Find an equation of the line containing the given point and having the given slope. Write the equation in slope-intercept form.(-5, 6), m = -9
A. y = -9x - 40 B. y = 9x - 41 C. y = -9x - 47 D. y = -9x - 39
Mathematics
Simplify by using the properties of complex numbers.i56 + 
A. -1 + 2i B. 3i C. 1 + 2i D. -i
Mathematics